O-LevelChemistryAtomic Structure5070/12 · Oct/Nov 2020 · Q81 Mark

An ion contains 20 electrons and has a charge of +3. From which element was the ion formed?

Aaluminium

Bcalcium

Ciron

Dvanadium

✓ Correct answer

D: vanadium

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Topic: Atomic Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2020 Paper 1 Variant 2, question 8.

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